Abstract: A bicycle transmission control apparatus comprises a control unit that provides a first signal to operate a first derailleur a gear shift distance from a first origin sprocket to a first destination sprocket. The control unit receives a condition signal that indicates a condition resulting from at least one of the first derailleur and a second derailleur; and an adjustment controller moves the first derailleur an adjustment distance less than the gear shift distance in response to the condition signal.

Abstract: A bicycle shift operating device is provided with a mounting part, a first operating member and a first signal generator. The first operating member is movable from a first operation start position such that the first operating member returns to the first operation start position upon completion of a shifting operation. The first signal generator generates a signal for changing a shift position of the bicycle shift operating device by one shift position in a first direction from a current shift position in response to the first operating member being moved from the first operation start position to a first position. The first signal generator generates a signal for changing the shift position by two shift positions from the current shift position in response to the first operating member being moved from the first operation start position to a second position located beyond the first position.

Abstract: A bicycle control system is provided with a switch device and a cycle computer. The switch device includes a switch operation member, a sensor arranged relative to the switch operation member to detect operation of the switch operation member, a processing unit operatively coupled to the sensor and a transmitter arranged to transmit an output signal. The processing unit of the switch device includes an identification code generating member, an operating signal generating member and an output member. The identification code generating member generates identification code related to identification of the switch device. The operating signal generating member generates an operation code indicative of operation of the switch operation member. The output member combines the identification code and the operation code as the output signal to be transmitted by the transmitter of the switch device.

Abstract: A bicycle shifting control apparatus controls an electrical power supplied from a power supply to first and second gear shifting devices that are operated by first and second gear shift operating devices, respectively. The bicycle shifting control apparatus includes a first power supply sensor and a controller. The first power supply sensor detects a power level of the power supply. The controller receives a power level signal from the first power supply sensor. The controller performs a stopping operation of the first gear shifting device in response to the first power supply sensor detecting the power level of the power supply being below a first prescribed power level, but the controller transmits a second gear shift signal from the second gear shift operating device to the second gear shifting device to perform a second shifting operation of the second gear shifting device.

Abstract: A testing tool for electric bicycle devices includes a tester circuit and a connector. The tester circuit is configured and arranged to test and diagnose operability of at least one electric bicycle device. The connector extends from the tester circuit and is configured and arranged to connect to the electric bicycle device and provide electronic communications between the tester circuit and the electric bicycle device.

Abstract: A bicycle shifting control apparatus controls an electrical power supplied from a power supply to first and second gear shifting devices that are operated by first and second gear shift operating devices, respectively. The bicycle shifting control apparatus includes a first power supply sensor and a controller. The first power supply sensor detects a power level of the power supply. The controller receives a power level signal from the first power supply sensor. The controller performs a stopping operation of the first gear shifting device in response to the first power supply sensor detecting the power level of the power supply being below a first prescribed power level, but the controller transmits a second gear shift signal from the second gear shift operating device to the second gear shifting device to perform a second shifting operation of the second gear shifting device.

Abstract: A wireless communication apparatus including a master unit and a slave unit. The master unit includes a transmitter configured to transmit a beacon periodically and a receiver. A detector is provided that is configured to output a detected signal, and the slave unit is configured to receive the detected signal from the detector. The slave unit includes a receiver configured to receive the beacon periodically at a receiving timing determined based on the beacon, and a transmitter configured to transmit the detected signal to the master unit receiver at a transmitting timing determined based on the beacon if a value of the detected signal changes by a threshold amount.

Abstract: A motorized bicycle derailleur assembly has a motor unit, a movable part (e.g., a motor linkage, a derailleur linkage and/or a chain guide) and a controller. The movable part is in response to activation of the motor unit within a mechanical stroke. The motor unit has a motor output stroke with a prescribed maximum movement range that is larger than the mechanical stroke of the movable part. The movable part has an anti-jamming arrangement having an anti-jamming spring. The anti-jamming spring is configured and arranged to compress when the motor unit continues to apply a moving force to the movable part after the movable part reaches a lockup position. The controller is configured to set the motor unit output stroke to an operating movement range that is smaller than the prescribed maximum movement range so that the anti-jamming biasing element remains uncompressed during normal shifting operation.

Abstract: A wireless communication apparatus including a master unit and a slave unit. The master unit includes a transmitter configured to transmit a beacon periodically and a receiver. A detector is provided that is configured to output a detected signal, and the slave unit is configured to receive the detected signal from the detector. The slave unit includes a receiver configured to receive the beacon periodically at a receiving timing determined based on the beacon, and a transmitter configured to transmit the detected signal to the master unit receiver at a transmitting timing determined based on the beacon if a value of the detected signal changes by a threshold amount.

Abstract: A bicycle control system is provided with a switch device and a cycle computer. The switch device includes a switch operation member, a sensor arranged relative to the switch operation member to detect operation of the switch operation member, a processing unit operatively coupled to the sensor and a transmitter arranged to transmit an output signal. The processing unit of the switch device includes an identification code generating member, an operating signal generating member and an output member. The identification code generating member generates identification code related to identification of the switch device. The operating signal generating member generates an operation code indicative of operation of the switch operation member. The output member combines the identification code and the operation code as the output signal to be transmitted by the transmitter of the switch device.

Abstract: A bicycle control system is provided with a sensed element, a sensor and a cycle computer. The sensed element is mounted to a first part of a bicycle. The sensor is mounted to a second part of the bicycle at a location to selectively detect the sensed element and send an output signal as the sensor detects the sensed element. The cycle computer is mounted to a part of bicycle with the cycle computer including a receiver arranged to receive the output signal from the sensor. The sensor includes a sensing element that outputs a detection signal upon detecting the sensed element, a processing unit that calculates relative behavior between the first and second parts based on a time interval of the detection signal from the sensing element, and a transmitter that transmits the output signal to the cycle computer based a calculation result of the processing unit.

Abstract: An apparatus for controlling a gear shift device comprises a gear shift controller that operates the gear shift device from a first gear position to a second gear position during a gear shift operation, a movement sensor that detects movement of the gear shift device, a timer, and a gear shift stopping unit that provides a signal to the gear shift controller to stop the gear shift operation when the timer measures a first time interval during which the movement sensor does not sense movement of the gear shift device.

Abstract: A testing tool for electric bicycle devices includes a tester circuit and a connector. The tester circuit is configured and arranged to test and diagnose operability of at least one electric bicycle device. The connector extends from the tester circuit and is configured and arranged to connect to the electric bicycle device and provide electronic communications between the tester circuit and the electric bicycle device.

Abstract: A bicycle shift operating device is provided with a mounting part, a first operating member and a first signal generator. The first operating member is movable from a first operation start position such that the first operating member returns to the first operation start position upon completion of a shifting operation. The first signal generator generates a signal for changing a shift position of the bicycle shift operating device by one shift position in a first direction from a current shift position in response to the first operating member being moved from the first operation start position to a first position. The first signal generator generates a signal for changing the shift position by two shift positions from the current shift position in response to the first operating member being moved from the first operation start position to a second position located beyond the first position.

Abstract: A bicycle display apparatus comprises a computing component and a separate display component. The computing component is structured for attachment to the bicycle, calculates cumulative information produced from a bicycle-related running condition, and includes an information output for outputting the calculated cumulative information. The display component includes an information input that receives the cumulative information calculated by the computing component, and the display component displays the cumulative information calculated by the computing component.

Abstract: An electric derailleur has a motor unit having a derailleur motor with an output shaft, a position control mechanism and a controller. The output shaft is rotated through a moveable range including a first derailleur shift position and a second derailleur shift position. The position control mechanism is configured and arranged to provide a position signal indicative of an angular position of the output shaft. The controller detects a predetermined lockup position of the derailleur motor occurring at one of the first and second derailleur shift positions. The controller also sets a predetermined stop position for the derailleur motor that is calculated distance prior to the lockup position based on the position signal of the position control mechanism. Thus, the derailleur motor can be calibrated such that a new stop position is set that prevents an overcurrent from occurring in the motor.

Abstract: A motorized bicycle derailleur assembly has a motor unit, a movable part (e.g., a motor linkage, a derailleur linkage and/or a chain guide) and a controller. The movable part is in response to activation of the motor unit within a mechanical stroke. The motor unit has a motor output stroke with a prescribed maximum movement range that is larger than the mechanical stroke of the movable part. The movable part has an anti-jamming arrangement having an anti-jamming spring. The anti-jamming spring is configured and arranged to compress when the motor unit continues to apply a moving force to the movable part after the movable part reaches a lockup position. The controller is configured to set the motor unit output stroke to an operating movement range that is smaller than the prescribed maximum movement range so that the anti-jamming biasing element remains uncompressed during normal shifting operation.

Abstract: A bicycle information processing apparatus comprises a memory for storing information related to the bicycle; an information processing unit that accesses the memory and processes information stored in the memory; and a power supply sensor that detects an ability of a power supply to supply power so that the memory may be accessed without damaging information stored therein.

Abstract: A bicycle power supply apparatus comprises a battery unit for storing power from a power supply and for supplying power to electrical components; a power switch operatively coupled to the battery unit for selectively switching power from the battery unit to the electrical components; and a switch control unit that receives power from the power supply and controls the power switch according to the power received from the power supply.

Abstract: An apparatus for controlling a gear shift device comprises a gear shift controller that operates the gear shift device from a first gear position to a second gear position during a gear shift operation, a movement sensor that detects movement of the gear shift device, a timer, and a gear shift stopping unit that provides a signal to the gear shift controller to stop the gear shift operation when the timer measures a first time interval during which the movement sensor does not sense movement of the gear shift device.